International Institute of Engineers (IIE)
Cloud computing has been envisioned as next-generation architecture of IT enterprises. Whereas considering security of cloud one can't ignore different threats to user's data on cloud. Rumors user at cloud storage is become most difficult attacks to stop. The concept of multiple cloud storage using the proxy re-encryption techniques. It will be split file in different chunks then encrypt and store them it on various clouds. The meta data required for decrypting, rearranging and stored in metadata management server. It will offer new opportunities new ways of securing their cloud against attack.